X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=website%2Farchive%2Fbinaries%2Fmac%2Fsrc%2Fdisembl%2FTisean_3.0.1%2Fsource_f%2Fslatec%2Fradb3.f;fp=website%2Farchive%2Fbinaries%2Fmac%2Fsrc%2Fdisembl%2FTisean_3.0.1%2Fsource_f%2Fslatec%2Fradb3.f;h=ae4056537e05f96beef2c56460ce8f86cfe9b716;hb=dbde3fb6f00b9bb770343631a517c0e599db8528;hp=0000000000000000000000000000000000000000;hpb=85f830bbd51a7277994bd4233141016304e210c9;p=jabaws.git diff --git a/website/archive/binaries/mac/src/disembl/Tisean_3.0.1/source_f/slatec/radb3.f b/website/archive/binaries/mac/src/disembl/Tisean_3.0.1/source_f/slatec/radb3.f new file mode 100644 index 0000000..ae40565 --- /dev/null +++ b/website/archive/binaries/mac/src/disembl/Tisean_3.0.1/source_f/slatec/radb3.f @@ -0,0 +1,85 @@ +*DECK RADB3 + SUBROUTINE RADB3 (IDO, L1, CC, CH, WA1, WA2) +C***BEGIN PROLOGUE RADB3 +C***SUBSIDIARY +C***PURPOSE Calculate the fast Fourier transform of subvectors of +C length three. +C***LIBRARY SLATEC (FFTPACK) +C***TYPE SINGLE PRECISION (RADB3-S) +C***AUTHOR Swarztrauber, P. N., (NCAR) +C***ROUTINES CALLED (NONE) +C***REVISION HISTORY (YYMMDD) +C 790601 DATE WRITTEN +C 830401 Modified to use SLATEC library source file format. +C 860115 Modified by Ron Boisvert to adhere to Fortran 77 by +C (a) changing dummy array size declarations (1) to (*), +C (b) changing definition of variable TAUI by using +C FORTRAN intrinsic function SQRT instead of a DATA +C statement. +C 881128 Modified by Dick Valent to meet prologue standards. +C 890831 Modified array declarations. (WRB) +C 891214 Prologue converted to Version 4.0 format. (BAB) +C 900402 Added TYPE section. (WRB) +C***END PROLOGUE RADB3 + DIMENSION CC(IDO,3,*), CH(IDO,L1,3), WA1(*), WA2(*) +C***FIRST EXECUTABLE STATEMENT RADB3 + TAUR = -.5 + TAUI = .5*SQRT(3.) + DO 101 K=1,L1 + TR2 = CC(IDO,2,K)+CC(IDO,2,K) + CR2 = CC(1,1,K)+TAUR*TR2 + CH(1,K,1) = CC(1,1,K)+TR2 + CI3 = TAUI*(CC(1,3,K)+CC(1,3,K)) + CH(1,K,2) = CR2-CI3 + CH(1,K,3) = CR2+CI3 + 101 CONTINUE + IF (IDO .EQ. 1) RETURN + IDP2 = IDO+2 + IF((IDO-1)/2.LT.L1) GO TO 104 + DO 103 K=1,L1 +CDIR$ IVDEP + DO 102 I=3,IDO,2 + IC = IDP2-I + TR2 = CC(I-1,3,K)+CC(IC-1,2,K) + CR2 = CC(I-1,1,K)+TAUR*TR2 + CH(I-1,K,1) = CC(I-1,1,K)+TR2 + TI2 = CC(I,3,K)-CC(IC,2,K) + CI2 = CC(I,1,K)+TAUR*TI2 + CH(I,K,1) = CC(I,1,K)+TI2 + CR3 = TAUI*(CC(I-1,3,K)-CC(IC-1,2,K)) + CI3 = TAUI*(CC(I,3,K)+CC(IC,2,K)) + DR2 = CR2-CI3 + DR3 = CR2+CI3 + DI2 = CI2+CR3 + DI3 = CI2-CR3 + CH(I-1,K,2) = WA1(I-2)*DR2-WA1(I-1)*DI2 + CH(I,K,2) = WA1(I-2)*DI2+WA1(I-1)*DR2 + CH(I-1,K,3) = WA2(I-2)*DR3-WA2(I-1)*DI3 + CH(I,K,3) = WA2(I-2)*DI3+WA2(I-1)*DR3 + 102 CONTINUE + 103 CONTINUE + RETURN + 104 DO 106 I=3,IDO,2 + IC = IDP2-I +CDIR$ IVDEP + DO 105 K=1,L1 + TR2 = CC(I-1,3,K)+CC(IC-1,2,K) + CR2 = CC(I-1,1,K)+TAUR*TR2 + CH(I-1,K,1) = CC(I-1,1,K)+TR2 + TI2 = CC(I,3,K)-CC(IC,2,K) + CI2 = CC(I,1,K)+TAUR*TI2 + CH(I,K,1) = CC(I,1,K)+TI2 + CR3 = TAUI*(CC(I-1,3,K)-CC(IC-1,2,K)) + CI3 = TAUI*(CC(I,3,K)+CC(IC,2,K)) + DR2 = CR2-CI3 + DR3 = CR2+CI3 + DI2 = CI2+CR3 + DI3 = CI2-CR3 + CH(I-1,K,2) = WA1(I-2)*DR2-WA1(I-1)*DI2 + CH(I,K,2) = WA1(I-2)*DI2+WA1(I-1)*DR2 + CH(I-1,K,3) = WA2(I-2)*DR3-WA2(I-1)*DI3 + CH(I,K,3) = WA2(I-2)*DI3+WA2(I-1)*DR3 + 105 CONTINUE + 106 CONTINUE + RETURN + END